Heating and ventilating system



HEATING AND VENTILA'I'ING SYSTEM.

0.P.N0BLE. Pa tented June 9, 1896.

ANDRE" BGHNMM. PHOTOMTHO WAS!" NGYOILDL.

UNITED STATES PATENT EEicE.

CHARLES P. NOBLE, OF CHICAGO, ILLINOIS.

HEATING AND VENTILATING SYSTEM.

SPECIFICATION forming part of Letters Patent No. 561 ,688, dated June 9, 1896. Application filed March 13, 1895. Serial No. 541,545. (No model.)

To ctZZ whom it may concern:

Be it known that 1, CHARLES P. NOBLE, a citizen of the United States of America, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Heating and Ventilating Systems, of which the following is a specification.

My invention relates to certain improvements in a class of heating and ventilating systems in which the fresh warm air is supplied to the different apartments under pressure and the foul air is permitted to escape through suitable vents as the fresh air crowds it along. In such a system two things are exceedingly desirable-first, that all of the necessary cracks and crevices of the apartments to be heated shall be filled with an outward current of warm air to prevent any inward current of cool air, which might interfere with the proper heating of the apartment and the maintaining of a constant and even temperature; second, that in case the draft of warm air is temporarily shut off or a door, window, or other opening into rooms opened a back current of cold air through the foul-air vents shall not set in to cool down the apartment and return the foul air which has been once driven out of this or some other room.

It is the purpose of my invention to provide a construction which shall have both of these desirable features, and at the same time shall involve but a nominal expense and need no special care and attention. To such end the invention consists in certain features of the apparatus below described, which features are definitely pointed out in the appended claims.

In the drawings presented herewith, Figure 1 is a vertical section of a portion of a building, showing a heating system to which my improvements are adapted. Fig. 2 is a face view, looking from the inside of the room, of a foul-air vent; and Fig. 3 is a transverse ver tical section of the same in line 3 3 of Fig. 2.

Looking at Fig. 1 and considering, for example, the room A, the same is supplied with warm air by means of a fan B, heating-drum C, hot-air passages D, hot-air register E, and foul-air vent F,the hot-air register being arranged above the foul-air vent. The vent F is not shown'in the section in the apartment A, but is shown in the apartment B, just above, and upon a larger scale in Figs. 2 and Said register is provided with an ordinary face-plate f, the central portion of which is made up of open or grille work, just behind which are a series of wings f, pivoted at the top and each overlapping the next below a slight distance at the bottom. The lower edge of each wing rests upon the side of the next opposite from the face-plate f and is held there merely by its own weight, so that the current of air from the room may force the plates apart and escape, but any back current may be checked and find it impossible to get through. A series of weighted arms f are provided on the wings f, each having an adjustable weight f so that the resistance of the wings to the outward current of air may be regulated to suit any requirements. For the best operation of the system this resistance should be sufficient to maintain an air-pressure Within the rooms great enough to force back any inward current of cold air through the cracks around the windows or doors.

I claim as new and desire to secure by Letters Patent 1. In a heating system, the combination with an apartment, of heating devices without the apartment, a flue leading from the heating devices into the apartment, means for positively forcing the heated air through said flue into the apartment, an opening for the escape of foul air from the apartment, and an automatic valve normally closing said opening and arranged to swing outwardly only, substantially as set forth.

2. In a heating system, the combination with an apartment supplied with heated air under positive pressure, of an opening for the escape of vitiated air from the apartment, and an automatic outwardly-swinging valve, normally closing said opening, and means for adjusting at will the resistance of the valve to such swinging, whereby the valve bot-h regulates the pressure in the apartment and prevents possible back drafts of vitiated air.

CHARLES I. NOBLE.

Witnesses CHAS. O. SnERvEv, A. I. H. EBBESEN. 

